In the following circuit the emf of source is E0=200 volt, R=20 Ω, L=0.1 henry, C=10.6 farad and frequency is variable then the current at frequency f=0 and f=∞ is

Question

In the following circuit the emf of source is E0=200 volt, R=20 Ω, L=0.1 henry, C=10.6 farad and frequency is variable then the current at frequency f=0 and f=∞ is (A) Zero, 10 A (B) 10 A, zero (C) 10 A, 10 A (D) Zero, zero

Tardigrade Admin · Accepted Answer

E0=200 volt, R=20 Ω, L=0.1 henry, C=10.6 F When f=0, XL=ω L=2 π f L XL=0 When f=∞, XL=∞, xC=0 In both case at least one component has value infinite. So in both cases current will be zero as they are connected in series.

Q. In the following circuit the emf of source is $E_{0} = 200$ volt, $R = 20 Ω, L = 0.1$ henry, $C = 10.6$ farad and frequency is variable then the current at frequency $f = 0$ and $f = \infty$ is

Zero, 10 A

10 A, zero

10 A, 10 A

Zero, zero

$E_{0} = 200$ volt, $R = 20 Ω, L = 0.1$ henry, $C = 10.6 F$
When $f = 0, X_{L} = ω L = 2 π f L$
$X_{L} = 0$
When $f = \infty, X_{L} = \infty, x_{C} = 0$
In both case at least one component has value infinite.
So in both cases current will be zero as they are connected in series.

Q. In the following circuit the emf of source is E0​=200 volt, R=20Ω,L=0.1 henry, C=10.6 farad and frequency is variable then the current at frequency f=0 and f=∞ is